build(windows): scripts build one-click + installer + doc

- build_windows_oneclick.bat / build_windows_installer_oneclick.bat : wrappers
- scripts/build_windows_oneclick.ps1 / build_windows_installer_only.ps1 / install_inno_setup_build_dep.ps1
- build_signing.example.ps1 : exemple protocole signing (sans secret)
- docs/build-windows-oneclick.md : documentation du build

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

scripts/build_windows_installer_only.ps1

@@ -0,0 +1,61 @@
+param(
+    [string]$AppVersion = (Get-Date -Format "yyyy.MM.dd.HHmm")
+)
+
+$ErrorActionPreference = "Stop"
+
+function Resolve-InnoCompiler {
+    $command = Get-Command ISCC.exe -ErrorAction SilentlyContinue
+    if ($command) {
+        return $command.Source
+    }
+
+    $candidates = @()
+    if (${env:ProgramFiles(x86)}) {
+        $candidates += (Join-Path ${env:ProgramFiles(x86)} "Inno Setup 6\ISCC.exe")
+    }
+    if ($env:ProgramFiles) {
+        $candidates += (Join-Path $env:ProgramFiles "Inno Setup 6\ISCC.exe")
+    }
+    if ($env:LOCALAPPDATA) {
+        $candidates += (Join-Path $env:LOCALAPPDATA "Programs\Inno Setup 6\ISCC.exe")
+        $candidates += (Join-Path $env:LOCALAPPDATA "Inno Setup 6\ISCC.exe")
+    }
+
+    foreach ($candidate in $candidates) {
+        if ($candidate -and (Test-Path $candidate)) {
+            return $candidate
+        }
+    }
+    throw "ISCC.exe introuvable. Installer Inno Setup 6 puis relancer."
+}
+
+function Require-Path {
+    param(
+        [string]$PathValue,
+        [string]$Label
+    )
+    if (-not (Test-Path $PathValue)) {
+        throw "$Label introuvable: $PathValue"
+    }
+}
+
+$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$ProjectRoot = (Resolve-Path (Join-Path $ScriptDir "..")).Path
+$InstallerScriptPath = Join-Path $ProjectRoot "installer\Anonymisation.iss"
+$PackageExePath = Join-Path $ProjectRoot "release\Anonymisation-Windows\Anonymisation.exe"
+$InstallerPath = Join-Path $ProjectRoot "release\Anonymisation-Setup.exe"
+
+Require-Path -PathValue $InstallerScriptPath -Label "Script Inno Setup"
+Require-Path -PathValue $PackageExePath -Label "Executable package"
+
+$innoCompiler = Resolve-InnoCompiler
+Write-Host "Inno Setup Compiler : $innoCompiler"
+& $innoCompiler "/DAppVersion=$AppVersion" $InstallerScriptPath
+if ($LASTEXITCODE -ne 0) {
+    throw "Inno Setup a echoue avec le code $LASTEXITCODE."
+}
+
+Require-Path -PathValue $InstallerPath -Label "Installateur Windows"
+$installerSizeMb = [math]::Round((Get-Item $InstallerPath).Length / 1MB, 1)
+Write-Host "Installateur pret : $InstallerPath ($installerSizeMb MB)"